Western spruce budworm
By: Martha H. Brookes ... [et al.].
Contributors: Brookes, Martha H.; United States. Cooperative State Research Service.; Canada/United States Spruce Budworms Program.
Series: Technical bulletin / United States. Dept. of Agriculture -- no. 1694.; Technical bulletin (United States. Dept. of Agriculture) -- no. 1694.
Publisher: U.S. Forest Service, Cooperative State Research Service
Published: 1987
Place of publication: Washington, DC
Language: eng
Number of pages: 198
Subjects: Western spruce budworm.; Spruce budworm.
Notes: At head of title: "Canada/United States Spruce Budworms Program-West."

"May 1987."

Includes indexes.

Bibliography: p. 151-172.